Between bids, change orders, retainage, and compliance, construction finances get messy fast. An Enrolled Agent (EA) is a federally credentialed tax specialist who represents you before the IRS and keeps your job-costing tight, your WIP accurate, and your returns bulletproof. At Henriquez Accounting & Tax Services, we align field operations with bookkeeping, quarterly tax planning, and year-end filings for GCs, subs, and specialty trades. Explore Bookkeeping, Tax Preparation, and Controller/CFO Advisory.
WIP & Job Costing Over/Under Billing IRS Representation
Clean books that tie to your estimates, pay apps, and cash—plus proactive tax strategy all year.
Top Reasons Contractors Work with an EA
- WIP accuracy: percent-complete, earned revenue, and over/under-billing mapped correctly.
- Job costing discipline: labor burden, materials, subs, equipment, and change orders tracked to the job and phase.
- 1099/W-9 control: collect W-9s, verify vendor types, and e-file 1099-NEC/MISC on time.
- Entity/S-Corp strategy: reasonable comp modeling, payroll setup, and documentation.
- Sales & use tax mapping: rules vary by state and scope—materials, fabrication, or retail parts.
- Notice defense: EAs handle IRS/state letters, audits, collections, and appeals.
Contractor Accounting Essentials (What to Get Right)
- Retainage: use
Retainage ReceivableandRetainage Payableledgers; tie to contracts and pay apps. - Clearing accounts:
Merchant Clearingfor credit card/Zelle/ACH aggregators; daily deposits reconcile cleanly. - COI & compliance: certificates of insurance tracked for subs; lien waivers matched to payments.
- AIA/Progress billing: schedule of values, change orders, and retainage reflected in AR/AP and WIP.
- Payroll & burden: certified payroll/prevailing wage support; burden (taxes/benefits/comp) allocated to jobs.
- CapEx vs. repairs: tools & equipment capitalization policy with thresholds and photos/invoices attached.
WIP, Billing, and Cash (How We Keep You Aligned)
Job Costing & WIP
- Budget vs. actual by cost code and phase; percent-complete updates.
- Recognize earned revenue; book Over/Under Billing properly.
- Tie purchase orders, receiving, and vendor bills to the job.
Billing Flows
- AIA progress invoices with retainage; change orders tracked to revenue and margin.
- Time & material jobs with rate cards and materials markup policies.
Cash Control
- 13-week cash forecast; draw schedules and milestone funding.
- AR collections cadence; AP batching and early-pay discounts where useful.
- Project closeout checklist: punch items, final lien waivers, retainage release.
Compliance
- W-9 intake at vendor setup; 1099 e-file in January.
- Sales/use tax rules reviewed per state/scope; resale and exemption documentation where applicable.
Our Cadence (Month–Quarter–Year)
Monthly
- Reconcile bank/credit/merchant; clear Undeposited Funds and
Merchant Clearing. - Close with P&L, Balance Sheet, Cash Flow, and WIP/over-under billing schedule.
- AR collections, AP approvals, and 13-week cash forecast refresh.
Quarterly
- Tax projections & vouchers; payroll/pay rate and burden reviews.
- Job margin review; estimate vs. actual by code; change-order profitability.
- Entity & compensation tune-ups (e.g., S-Corp reasonable comp checks).
Annually
- 1099-NEC/1099-MISC e-file; fixed-asset roll-forward and depreciation.
- Business & owner returns; bonding/lender packages with WIP and financials.
Recommended Stack (Construction)
- Accounting: QuickBooks Online/Desktop with projects & cost codes.
- Job costing: Buildertrend, Knowify, or ProjectPro; PO and time capture integrated.
- AP & spend: Bill.com or Ramp with approvals, vendor policies, and COI tracking.
- Time & payroll: Gusto/QB Payroll/ADP with job/phase allocations; certified payroll reports as needed.
- Docs: Dext/Hubdoc for receipts; lien waivers and COIs stored with vendor/job.
Pro Tip: Track retainage in separate AR/AP accounts and show it on WIP. Your cash forecast and bonding conversations will be far more accurate.
Common (Costly) Mistakes We Fix
- Revenue recorded from bank deposits instead of WIP/earned revenue → distorted margins.
- No retainage ledger; cash surprises at closeout.
- Missing W-9s and late 1099s → avoidable penalties.
- Materials and subs not tied to jobs/codes → budget vs. actual meaningless.
- Sales/use tax mis-mapping on materials vs. labor where rules differ.
What You’ll Get When You Work With Us
- Clean job costing, WIP, and over/under-billing schedules—every month.
- Quarterly tax projections with vouchers and dates.
- 1099 workflow, W-9 tracking, and notice handling (IRS/state) by an EA.
- Owner dashboard: cash runway, job margins, and collections focus list.
- Secure portal, e-sign, and documented SLAs.
FAQs
Can you handle WIP and over/under-billing?
Yes. We prepare percent-complete WIP schedules, record earned revenue, and book over/under-billing correctly so margins are real.
Do you support certified payroll and prevailing wage?
We coordinate setup and reporting with your payroll platform and map job/phase allocations; we maintain documentation for audits.
How do you handle subcontractor compliance?
W-9 at vendor setup, COI tracking, lien waivers tied to payments, and on-time 1099 e-filing with clean vendor mapping.
Do contractors charge sales tax?
It depends on the state and the scope (materials, fabrication, service). We review rules, set the right mappings, and maintain support.
Is an S-Corp right for my contracting business?
Often once profits are consistent. We model reasonable compensation vs. distributions, set up payroll, and document the position.
Ready for contractor books that match the job site?
We’ll align bids, budgets, billing, and tax—so WIP, cash, and margins stay predictable. Talk to an Enrolled Agent today. Schedule Consultation

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