\n
Home› Service Areas› Business Tax Preparation — Rockville, MD
📍 Rockville, MD · Tax Prep Service

Business Tax Preparation
in Rockville, MD

Tax preparation support in Rockville, MD for the businesses that anchor the I-270 corridor — biotech and life sciences companies threading Section 174 R&D capitalization, Form 6765 federal credit substantiation, and Maryland's separate state R&D credit; Town Center law firms with IOLTA trust accounts feeding into year-end tax prep; Rockville Pike restaurants reconciling FICA tip credits and Form 8027. We organize tax-ready records year-round and coordinate directly with your CPA at filing time. Verified Intuit QuickBooks ProAdvisor.

Book a free Rockville, MD consultation → View all services
★★★★★5.0on Google
✓Business and personal tax returns filed for Rockville, MD small businesses
✓S-Corp, LLC, sole prop, partnership — all entity types
✓Year-round Rockville, MD tax planning — not just April filing
✓IRS notice response included — we handle the letters
Rockville, MD Tax Tracker
Example
Business return (1120-S)Mar 17st-ok
Personal 1040Apr 15st-ok
Q2 Estimated paymentJun 15st-due
Year-end tax planningDecst-ok
📍 Rockville, MD — local noteMaryland PTET elections can save Rockville S-Corp and partnership owners meaningful money every year. We evaluate eligibility for every qualifying client automatically.
Your Rockville, MD tax prep plan

Everything included — no hidden
add-ons or surprise fees

Every CPA tax accountant Rockville MD client in Rockville, MD gets the complete service.

💼
All entity types
S-Corp (1120-S), LLC, Partnership, Sole Proprietor, and personal 1040. Every return filed correctly and on time.
📅
Year-round planning
Tax planning that starts in January — not March. We flag deductions and make strategic moves while there's still time.
🗺️
State & local expertise
Federal plus every state and local filing your business needs. No missed deadlines, no overlooked forms.
📉
Maximize deductions
We review every deduction category relevant to your industry and entity type — nothing left on the table.
📬
IRS correspondence
If the IRS or state sends a notice, we handle it. You don't have to figure out what to do alone.
🧮
Estimated payments
We calculate your quarterly estimated tax payments and remind you before each deadline — no underpayment penalties.
Rockville-specific tax prep

What Rockville tax prep
actually requires.

Rockville is the county seat of Montgomery County and one of the densest biotech clusters in the United States. The I-270 Technology Corridor's small businesses — biotechs, CROs, diagnostics companies, and life-sciences services firms — face a compounded federal tax stack (Section 174, Form 6765 R&D credit, NIH/NSF/BARDA/DoD grant accounting) layered on top of the standard Maryland Form 502/510 + SDAT + Montgomery County personal property regime. Below is what we handle.

Maryland state returns (502, 510, 510-PTET)
Maryland residents file Form 502; pass-throughs file Form 510 with K-1s. The Maryland Pass-Through Entity Tax election uses Form 510-PTET, paid at the entity level to preserve the federal SALT deduction. Worth modeling each year. Your CPA decides; we make sure books support the choice.
SDAT business personal property + MoCo PPT
Maryland SDAT requires every business to file an annual Personal Property return by April 15. Biotechs with significant lab equipment have larger assessments — accurate filings matter. Montgomery County issues a separate County personal property tax bill on the same assessed value. We handle both as part of standard Rockville engagements.
Federal R&D Tax Credit (Form 6765)
Federal R&D credit applies to qualified research expenses — direct R&D labor, supplies, and 65% of contract research. For Rockville biotechs developing therapeutics, diagnostics, or proprietary tooling, this is typically material. We organize project-level documentation throughout the year so your CPA can compile Form 6765 efficiently rather than reconstructing it.
Maryland state R&D credit
Maryland offers a separate state R&D credit administered through the Department of Commerce. Application is annual, with allocation based on a state pool. We handle the application timing, qualified-expense calculation, and coordination with your CPA on whether to claim the basic credit or the small-business growth credit.
Section 174 R&D capitalization
Federal tax law requires capitalizing and amortizing R&D expenditures over 5 years (15 for foreign R&D) since 2022. For pre-revenue Rockville biotechs this can produce taxable income on paper despite operating losses. We track Section 174 qualified expenses through QuickBooks classes by project so your CPA has clean source data for the amortization schedule.
NIH / NSF / BARDA / DoD grant accounting
Year-end tax prep for grant-supported biotechs requires reconciling draw-downs against allowable costs, applying your negotiated F&A rate, supporting cost-share commitments, and segregating direct R&D labor from indirect for both Form 6765 and Section 174 purposes. We coordinate with your federal grants office and CPA.
Ongoing books: Rockville bookkeeping. Rockville payroll: Rockville payroll. South in MoCo: Bethesda tax prep. Across the river: DC tax prep.
Sound familiar?

Why Rockville business owners
stop filing their own taxes

→Dreading Tax Season
→Got An Irs Notice
→Years Behind On Filing
→Paying Too Much In Taxes
→Switching From Turbotax
→Need A Real Tax Accountant
→Missed Quarterly Estimates
→Surprised By A Big Tax Bill
→Don't Know What You Can Deduct
→First Year In Business Taxes

If any of these hit home, we should talk. Free 15-minute consultation, no pressure.

Book a free call →
Industries we know cold

Tax prep for the businesses
that actually run Rockville.

Rockville's economy is a barbell — life sciences on one end, county-seat professional services on the other.

🧬
I-270 biotech & life sciences
Section 174 R&D capitalization tracking, Form 6765 federal R&D credit substantiation, Maryland state R&D credit application, NIH/NSF/BARDA/DoD grant accounting and cost-share reconciliation, project-based F&A rate application, S-corp election analysis for biotech founders, and clean books that survive venture due diligence.
⚖️
Town Center professional services
Law firms with IOLTA trust accounts requiring three-way reconciliation, accountants and tax preparers, financial advisors, A&E firms operating around the Montgomery County government complex. S-corp election analysis, reasonable compensation documentation, retainer accounting, partner draws vs. W-2 splits, multi-partner books for year-end Form 1065 K-1s.
🍴
Rockville Pike & Town Center restaurants
FICA tip credit (Form 8846), allocated tips on W-2s, Form 8027 for large food/beverage establishments, Section 263A inventory capitalization for food costs, qualified business income deduction (Section 199A) modeling, and Maryland meals/sales tax reconciliation.
Local expertise

Why Rockville, MD businesses choose
Capital Accounting Group

We're not a national chain. We understand Rockville, MD's local tax rules, industry mix, and what biotech and life sciences companies owners actually need from a CPA tax accountant Rockville MD.

What we know about Rockville, MD tax prep
  • →Rockville is home to major biotech and life sciences clusters along I-270
  • →Montgomery County PTET elections can deliver real savings for Rockville S-Corp owners
  • →Shady Grove Metro corridor has driven commercial real estate growth
  • →MD requires quarterly SUI filings with separate deadlines from federal FUTA
Book a free Rockville, MD consultation →
📒
Weekly — not monthly
Most bookkeeping services in the area reconcile once a month. We do it every week — your numbers are never more than 7 days stale.
🛡️
Risk-free guarantee
We get your books in order within 30 days — or your first month is free. We stand behind the work.
⚡
Fast onboarding
Most Rockville, MD tax prep clients are up and running within 1–2 weeks. No long contracts, no setup headaches.
How it works

From first call to clean books —
in less than two weeks.

1
Free consultation
15 min — we learn your Rockville, MD business, current setup, and what tax prep you need most.
2
Secure access
You grant read-only account access. No sensitive data ever emailed back and forth.
3
We get to work
Your first tax prep cycle starts within 1–2 weeks. Clean, fast, no drama.
4
Ongoing support
Reports, proactive updates, and real humans who flag problems before they become penalties.
A representative tax-prep engagement

What a typical Rockville
tax-prep engagement looks like.

A clinical-stage biotech in the I-270 corridor (S-corp, three founders, twelve employees, two NIH grants and an SBIR Phase II in active draw-down) came to us mid-fiscal-year. Their CPA had asked for clarity on three issues: Section 174 R&D capitalization wasn't being tracked, Form 6765 substantiation was missing, and the founders hadn't yet decided whether to pursue Maryland's basic R&D credit or the small-business growth credit (the latter has higher rates but stricter qualification rules).

Over six weeks we set up Section 174 qualified-expense tracking by project through QuickBooks classes, built a Form 6765 substantiation file from contemporaneous documentation, modeled both Maryland R&D credit options for the founders (the basic credit was the right call given their qualified-expense profile), filed the Maryland state R&D credit application, and reconciled twelve months of NIH/SBIR draw-downs against allowable costs and indirect cost recovery. Their CPA filed an amended prior-year return claiming both federal and Maryland credits. Current-year Section 174 amortization is now correctly tracked. They also elected Maryland PTET starting that fiscal year.

That's a representative composite — not a single real client — but it's a pattern we see two or three times a quarter in Rockville's I-270 biotech community.

Frequently asked questions

Rockville, MD tax prep
FAQ.

How much does small business tax prep cost in Rockville, MD?+
For a Rockville biotech or small business, year-round tax-prep coordination typically runs $350–$1,500 per month. Plans start at $350/month for sole proprietors, $650/month for established businesses needing weekly close, and $1,500/month for the CFO Partner tier. Biotechs with NIH grants and R&D credit substantiation typically fall in the upper tier. CPA tax-return preparation fees are separate ($1,500–$5,000+ for a typical biotech return).
How does the federal R&D Tax Credit (Form 6765) work for a Rockville biotech?+
Federal R&D credit applies to qualified research expenses — direct R&D labor, supplies, and 65% of contract research. We organize project-level documentation throughout the year so your CPA can compile Form 6765 efficiently. Maryland also offers a separate state R&D credit; we handle that application too.
Should my Rockville biotech apply for the Maryland basic R&D credit or the small-business growth credit?+
Maryland offers two R&D credit tracks: the basic credit and the small-business growth credit. The basic credit has lower rates but broader qualification; the growth credit has higher rates but stricter qualification rules. We model both for your CPA based on your qualified-expense profile and prior-year R&D spending. The right answer is fact-specific.
How does Section 174 R&D capitalization affect my Rockville biotech?+
Since 2022, federal tax law requires capitalizing and amortizing R&D expenditures over 5 years (15 for foreign R&D). For pre-revenue Rockville biotechs this can produce taxable income on paper despite operating losses. Tracking qualified Section 174 expenses through QuickBooks classes provides clean source data for the amortization schedule.
Should my Rockville biotech or law firm elect Maryland PTET?+
Maryland PTET is elective and can preserve the federal SALT deduction by paying Maryland tax at the entity level via Form 510-PTET. Whether it makes sense depends on owner federal AGI and whether they'll itemize. Your CPA models the math.
Can you handle NIH / NSF / BARDA grant accounting and tax-prep coordination?+
Yes. We set up project-by-project tracking in QuickBooks aligned to NIH, NSF, BARDA, and DoD award structures, reconcile draw-downs against allowable costs, apply your negotiated F&A rate, and reconcile QuickBooks project P&Ls against federal cost-share reports. Year-end tax prep coordination feeds Form 6765 substantiation directly.
What's the deadline for an Rockville S-corp to file federal and Maryland state taxes?+
Federal Form 1120-S is due March 15 (extension to September 15 via Form 7004). Maryland Form 510 is due April 15 (extension to October 15). Maryland SDAT business personal property is due April 15. Estimated tax payments follow quarterly schedules. We prepare a quarterly tax-prep readiness file by month-end of months 3, 6, 9, and 12.
More service areas

Tax Prep across the DMV

We serve small businesses throughout Washington DC, Maryland, and Virginia.

Tax Prep Washington DC Tax Prep Bethesda, MD Tax Prep Arlington, VA Tax Prep Alexandria, VA Tax Prep Silver Spring, MD

More services in Rockville, MD

All services designed for Rockville, MD small businesses.

Bookkeeping in Rockville, MD Payroll in Rockville, MD
Ready to hire a CPA tax accountant Rockville MD
in Rockville, MD?

Free 15-minute call. No pressure. We'll tell you exactly what you need and what it costs — no mystery pricing.

Book free Rockville, MD consultation → See all services & pricing