Job costing, WIP and weekly certified payroll built for the Commonwealth
Construction accounting in Massachusetts has to survive things other states never ask about. A Department of Labor Standards rate sheet lands with the award and certified payroll is due every week. On a filed sub-bid job under Chapter 149 you carry subcontract prices you never negotiated. The corporate excise bills you on property or net worth even in a losing year. Then the ground freezes, four months of revenue disappear, and the police detail invoices from November turn up in February. We keep job costing, payroll and the WIP schedule running as one system so none of that arrives as a surprise.
On the ground
Boston across the Charles River, Massachusetts
Massachusetts stacks a weekly prevailing wage filing, an unusual public bidding structure, a two-measure state excise and a hard winter on top of ordinary contractor accounting. General small-business bookkeeping produces none of what those four demand.
They didn’t just record transactions and call it a day. They built a custom chart of accounts around how a remodeling company actually runs, did a full catch-up on years of bookkeeping inside QuickBooks Online, and now stay on top of my monthly bookkeeping and payroll. Every step, they broke it down in simple terms instead of burying me in accountant talk.
FinTruction rebuilt the whole thing from the ground up, with real job costing, work in progress, and retainage. They didn’t just hand me reports and disappear; they walked me through my numbers until I understood them.
Sahil and his team handle the bookkeeping and job costing for my painting business. They cleaned up my books and set up integrations that give me accurate, timely job costing with solid weekly data. Reliable, detailed, and genuinely invested in getting the numbers right.
FinTruction is the only bookkeeping team we’ve found that truly understands construction accounting and WIP reporting. They aligned our income and costs across 21 jobs and gave us full, monthly transparency. Fast, accurate, and an indispensable partner.
When I came to FinTruction I had no financial structure. No job costing, no WIP tracking, books behind. They did a full cleanup and rebuilt job costing and WIP tracking in QuickBooks. Now I know what’s billed, what’s owed, and where every job stands.
A couple of minutes from a contractor we support, sharing what working with FinTruction has been like and what changed once their numbers finally made sense.
Massachusetts certified payroll is a weekly obligation, and the wage schedule is issued for your specific project rather than pulled from a general table. When payroll, the compliance filing and job costing live in three separate places, the labor numbers stop agreeing, and a Department of Labor Standards look at the file is exactly where that shows up. We run all three from one payroll process.
Every construction platform claims to have a "QuickBooks integration." Most break the moment your books need to be accurate. Sales tax mismaps, retainage disappears, change orders create duplicates, and job costing reports stop matching project reality. We fix the integration so your software, your books, and your job‑level numbers all tell the same story.
Also work with Foundation, Sage 100, Bill.com, ADP, Gusto, Ramp, and more. See all platforms we integrate →
On a filed sub-bid job the subcontract price is set at the awarding authority bid opening, so the usual buyout cushion does not exist and every scope gap between the trade description and the drawings becomes a change order argument. Filed sub-bidders have the mirror problem: a fixed price committed before they know who the general contractor is. Either way, the accounting has to be exact from award.
A laboratory fit-out or a hospital renovation is mostly mechanical, electrical and plumbing value, phased around a building that has to stay operational, with owner-driven changes arriving after the budget is set. Cost codes built for a straightforward commercial shell will not tell you which phase or which change is losing money. We build the cost structure around how the work is actually sequenced and billed.
In Massachusetts your financial statements decide how much work you are allowed to chase. Public building and MassDOT prequalification ratings set a single project limit and an aggregate limit, and a surety reads the same package. That makes the WIP schedule a strategic document. We produce a monthly work in progress schedule that compares cost to date against the current estimate and shows over and underbilling by job.
Massachusetts is an expensive place to carry a job, and the state takes its cut through the corporate excise on income and on property or net worth, the pass-through entity election, and use tax on out-of-state material. Our construction tax planning, controller services and outsourced CFO support answer what you can carry and what a job does to cash before it pays.
A general bookkeeper can record transactions. Construction accounting is a different job.
| What you need | Generic local bookkeeper | FinTruction |
|---|---|---|
| Job-level costing | Lumps all jobs into one P&L | Cost codes and margin per project |
| WIP & revenue recognition | Cash-basis, no WIP schedule | Monthly WIP with over/underbilling |
| Retainage tracking | Buried in AR/AP, often missed | Tracked receivable & payable by contract |
| Bonding & lender packages | Not equipped to produce them | Bonding-ready statements and backlog |
| Construction software | QuickBooks set up like a retail shop | QuickBooks + integrations tuned for contractors |
Massachusetts is a high-cost, high-regulation market where the buildings are old, the labor is largely union, and a large share of the work is institutional. Greater Boston runs on life sciences, hospitals and universities: lab construction and lab conversions around the Seaport, Fenway and Longwood, medical campuses that have to stay open while you renovate them, and university projects with academic calendars driving the schedule. Those jobs are mechanical and electrical heavy, which means most of the money and most of the risk sits with the trades, not the shell.
The regions genuinely differ, and that is where a contractor working statewide gets hurt. Cambridge, Somerville and the Route 128 belt through Waltham and Lexington are the biotech corridor, with tenant fit-out cycles and owner-driven change. Worcester has biomanufacturing, healthcare and a downtown redevelopment push at a materially lower cost base than Boston. Springfield, Holyoke and Northampton in the Pioneer Valley skew more open shop with a different wage structure entirely. New Bedford and Fall River carry marine and offshore wind port work. Cape Cod is seasonal residential with a compressed build window. A contractor moving across those markets picks up different municipal permitting, different local inspection practice, and different labor economics on the same trade.
Dense urban work is where the budget quietly leaves. In Boston, Cambridge and Somerville, logistics and staging can be half the cost problem: no laydown area, night deliveries, street occupancy permits, and a police detail that many municipalities require on road and utility work. Detail invoices arrive from the city weeks after the work, often after the pay application has already gone out, so the cost lands on a job that has been billed. Old building stock adds another layer, because lead paint under the Massachusetts Lead Law and asbestos notification requirements turn a renovation into a documented abatement sequence, and work in a historic district brings review that can move the schedule.
Then there is winter. A hard freeze season compresses productive work into roughly April through November, so cost and revenue bunch into three quarters while salaried overhead runs through all four. Cold weather protection, temporary heat and enclosure show up as job cost that was frequently not carried in the bid. The result is a first-quarter cash trough that arrives on schedule every year and still surprises people. Forecasting it against retainage releases and open pay applications is ordinary work, but only if the underlying job cost is current. See how we have handled this for other contractors in our construction accounting case studies.
The Massachusetts prevailing wage law sits in M.G.L. Chapter 149, sections 26 through 27, and is administered by the Department of Labor Standards. DLS issues a wage schedule for the individual project, requested by the awarding authority, and that schedule becomes part of the contract. Certified payroll records with a statement of compliance are due weekly to the awarding authority, and apprentice ratios are checked through the Division of Apprentice Standards. There is no meaningful dollar floor, so small municipal jobs carry the same weekly burden as large ones. This is administered out of payroll and job cost, which is why we treat it as accounting rather than paperwork.
Massachusetts uses a filed sub-bid system under M.G.L. Chapter 149, section 44F, that exists almost nowhere else. On public building projects above a statutory dollar threshold, subcontractors in designated trade categories submit sealed sub-bids directly to the awarding authority, and the general contractor must carry the selected price. The accounting consequence is specific: the general contractor has no buyout savings available on those trades, so a budget assuming buyout is wrong from award, and every gap between the filed trade scope description and the drawings becomes a change order rather than absorbed cost. Commitments should be opened at the filed amount immediately.
The Massachusetts corporate excise under Chapter 63, administered by the Department of Revenue, combines an income measure on apportioned net income with a second measure charged on taxable tangible property or net worth, plus a minimum excise that is due regardless of results. Equipment-heavy contractors therefore owe Massachusetts excise in loss years, which makes owned equipment a state tax decision as well as a fleet decision. Pass-through entities can elect to pay an entity-level excise with a credit flowing to the owners, and for owners near the surtax threshold on high personal income the timing of recognized revenue matters. Job cost accuracy is what makes that timing defensible.
Massachusetts generally treats a contractor as the consumer of materials it furnishes and installs into real property, so the contractor pays the 6.25 percent tax on purchase and does not add tax to the contract price. Two exposures follow. Material purchased in New Hampshire, which has no sales tax, and installed in Massachusetts creates a Massachusetts use tax liability that most contractors never accrue, and it is a routine audit finding along the border. And work for a governmental body or a qualifying exempt organization only gets its exemption if the contractor claims it correctly with an exempt purchase certificate at the time of buying, not afterwards.
Massachusetts licenses construction supervisors through the Board of Building Regulations and Standards, requires Home Improvement Contractor registration through the Office of Consumer Affairs and Business Regulation for most residential remodeling work, and licenses electricians, plumbers and gas fitters through their own state examining boards. Registration fees, renewals, the Guaranty Fund contribution, insurance and bonding are real costs of being allowed to work here. They belong in a deliberate overhead rate rather than sitting as unclassified expense, otherwise every bid you produce quietly understates what the job has to carry.
M.G.L. Chapter 149, section 29F, caps retainage at five percent on private commercial projects above a statutory contract value and sets a defined sequence for substantial completion, the punch list and release. Section 29E of the same chapter sets time limits for approving or rejecting a payment application, and an application that is not rejected in writing with a stated factual basis inside the window is treated as approved. Public work retainage runs under Chapter 30 instead. All of these clocks only help a contractor whose records show the trigger dates, which is why retainage belongs outside ordinary receivables.
Massachusetts mechanics lien rights sit in M.G.L. Chapter 254 and are unusually unforgiving. A written contract is required, a Notice of Contract and a Statement of Account must be recorded at the Registry of Deeds for the county where the property sits, and the deadlines are short and tied to substantial completion and last work rather than to when you decide to chase the money. We are not attorneys and we do not record notices. What we do is keep unpaid amounts organized by job, tier and date of last work so the deadline calendar runs off real data and your attorney gets the backup the same day.
We support contractors across the Commonwealth, from the mechanical and electrical houses building labs along the Kendall Square corridor to restoration masons working two-hundred-year-old brick and site crews running municipal utility contracts.
Running a Construction Company in Massachusetts?
Get Your Free AuditA fair question if you already have a bookkeeper, a payroll service and a CPA who does the return. Here is the honest answer.
Most Massachusetts contractors do not need new software. They need what they already pay for set up for construction and wired into the accounting, so certified payroll and the monthly WIP fall out of normal work instead of becoming a second job.
Most QuickBooks files we inherit were configured for a business that sells products off a shelf. For a contractor that means jobs are set up as customers, cost codes do not really exist, retainage hides inside accounts receivable, and payroll cannot produce a weekly certified payroll report without manual rework every Monday.
Is your QuickBooks file working against you?
If your project managers are already tracking budgets, commitments and change orders in a construction platform, the office should not be retyping any of it. We connect the field system to the accounting so the numbers agree and the month does not open with an argument about whose figure is right.
One set of numbers that both the field and the office believe.
Once the systems are connected, reporting stops being a history lesson. These are the reports Massachusetts contractors use to decide what to chase in the spring and what to walk away from:
If you want the day-to-day handled as well, we also provide construction bookkeeping for contractors across the state.
Yes, on essentially any public construction work in Massachusetts. The prevailing wage law sits in M.G.L. Chapter 149, sections 26 through 27, and the Department of Labor Standards issues a wage schedule for the specific project, which the awarding authority attaches to the contract. Certified payroll records with a statement of compliance are due weekly, not monthly, and apprentice ratios are checked separately through the Division of Apprentice Standards. Unlike the federal Davis-Bacon Act, there is no meaningful dollar floor, so a small municipal job carries the same weekly filing burden as a large one.
The filed sub-bid process under M.G.L. Chapter 149, section 44F, means the awarding authority opens sub-bids for designated trades on public building projects above a statutory dollar threshold, and the general contractor has to carry those prices in its own bid. Two things follow for the books. The general contractor gets no buyout savings on those trades, because the subcontract value is fixed before award, so a budget built on assumed buyout is already wrong. And any gap between the filed trade scope description and the actual drawings turns into a change order rather than an absorbed cost. We set commitments up on day one at the filed amount and track scope-gap changes as their own line.
A contractor in Massachusetts is generally treated as the consumer of the materials it furnishes and installs into real property, so the contractor pays the 6.25 percent sales tax when it buys the material and does not charge tax on the contract price. Two traps follow. Materials bought across the border in New Hampshire, which has no sales tax, and then installed in Massachusetts create a Massachusetts use tax liability that nobody accrues. And on work for a governmental body or a qualifying tax-exempt organization, the exemption has to be claimed properly with the exempt purchase certificate at the time of purchase, not reconstructed afterwards.
The Massachusetts corporate excise, administered by the Department of Revenue under Chapter 63, is two taxes bolted together. There is an income measure on apportioned net income, and there is a second measure charged on taxable tangible property or net worth at a rate per thousand dollars, with a minimum excise due regardless of results. For an equipment-heavy site, utility or excavation contractor, that second measure means you can owe Massachusetts excise in a year you lost money. It also means how you classify and depreciate owned iron is a state tax decision, not only a federal one.
On private commercial projects above the statutory contract value, M.G.L. Chapter 149, section 29F, caps retainage at five percent and imposes a defined process: a notice of substantial completion, a limited window for the punch list, and a deadline for releasing the retainage after that. Public building and public works retainage runs under the Chapter 30 provisions instead. The practical accounting point is that these statutory clocks only help you if the record shows the trigger date. We keep retainage receivable and payable separate from ordinary receivables by contract, with the substantial completion date and release condition attached.
Massachusetts is one of the most heavily unionized construction markets in the country, and a single carpenter or electrician can carry health and welfare, pension, annuity, training and other fund contributions, each at its own rate, each with its own monthly remittance format and its own fund audit. Fringes are part of what the labor on that job cost you, so they belong on the job alongside base wages rather than sitting in a general payroll account. We allocate fringes to the job and cost code, then reconcile the remittance reports back to the same payroll records a fund auditor will ask to see.
Public building work through the state asset management agency and highway work through MassDOT both run on prequalification, and prequalification runs on your financial statements. The rating you receive sets a single project limit and an aggregate limit, so weak or late statements literally cap the size of the work you are allowed to bid. Sureties read the same package. That makes the WIP schedule, the retainage disclosure and the equipment schedule strategic documents rather than compliance paperwork. We keep them accurate month to month so the renewal is a submission rather than a scramble.
Treat winter as a cash event and a revenue recognition event, not just a slow season. A hard freeze compresses the productive schedule into roughly April through November, so cost incurred and revenue earned bunch into three quarters while payroll for foremen, project managers and office staff continues through all four. Cold weather protection, temporary heat and enclosure are real job costs that often were not carried in the bid. We forecast the winter trough against retainage releases and open pay applications, and we make sure the December percentage of completion reflects productivity that actually happened.
Yes. We work with contractors across the Commonwealth: Greater Boston and the Seaport, Cambridge and the Kendall Square life sciences corridor, the Route 128 belt through Waltham and Lexington, the North Shore and South Shore, MetroWest, Worcester County, the Pioneer Valley around Springfield, Holyoke and Northampton, the South Coast at New Bedford and Fall River, and Cape Cod. We also handle the multi-state questions that come with working into New Hampshire, Rhode Island and Connecticut, including payroll withholding and nexus. Everything is remote, so you are not paying for an office.
Start with the free Audit. Send your current accounting file and your last job profitability or WIP report, and we will tell you what is wrong, what it is costing you, and what it would take to fix. There is no obligation. After that it is a flat monthly fee based on transaction volume, active jobs and reporting needs, so a phone call in the middle of a bid does not start a clock. Sahil Ahmad, CPA reviews the work.
FinTruction provides construction accounting across Massachusetts. Select your city below for job costing, WIP reporting and contractor bookkeeping support in your market.
Not Seeing Your City?
We serve contractors across all of Massachusetts. View all locations →
Send your current accounting file and your last job profitability or WIP report. We will tell you what is wrong with it, what it is costing you, and whether your certified payroll and job cost would agree if the Department of Labor Standards pulled the file. No charge and no obligation for the Audit.
Looking for professional construction accounting in Massachusetts? Fill out the short form below and our contractor bookkeeping team will contact you within 24 hours.
