The 90-Day Audit Readiness Checklist
Every reconciliation, schedule and memo an auditor will ask for, sequenced week by week from day one to fieldwork.
Guides, checklists, the 2026 filing calendar and straight answers, published because a business that fixes its own close is a better client than one that does not know it has a problem.
Working documents rather than marketing brochures. Each is something we use internally on client engagements, edited so it makes sense without us in the room.
Every reconciliation, schedule and memo an auditor will ask for, sequenced week by week from day one to fieldwork.
The five-day close sequence as an editable checklist, with owners, due days and completion criteria for every step.
Twenty-eight questions covering the seven priority controls, scored so you can see where your largest exposure actually sits.
A blank register covering federal, state and funder obligations, pre-populated with the standard New York charitable filings.
A rolling weekly cash forecast driven by the receivables ledger, payables aging, payroll dates and debt service.
The questions to work through between August and November, with the levers that are still available before 31 December.
These are sent on request rather than through a download gate, because we would rather know who is asking and what for. Email hello@hudsonfrs.com naming the guide you want, or ask through the contact form. No sales sequence attached. You will get the document.
Standard statutory deadlines for calendar-year filers, with the internal lead time each one actually requires. Dates falling on a weekend or holiday shift to the next business day.
| Date | Obligation | Applies to | Start work by |
|---|---|---|---|
| 15 Jan | Q4 estimated tax (federal & NYS) | Individuals, pass-through owners | Early January |
| 31 Jan | W-2s and 1099-NEC to recipients; Forms 941 (Q4) and 940 | All employers | Early December |
| 2 Mar | Electronic 1099 filing with the IRS | All payers | Early February |
| 15 Mar | S corporation (1120-S) and partnership (1065) returns; K-1s | S corps, partnerships, multi-member LLCs | Mid-January |
| 20 Mar | NYS annual sales tax return | Annual sales tax filers | Early March |
| 15 Apr | C corporation (1120) and individual (1040) returns; Q1 estimates | C corps, individuals | Mid-February |
| 30 Apr | Form 941 (Q1); NYS-45 quarterly withholding | All employers | Mid-April |
| 15 May | Form 990 and NYS CHAR500 | Calendar-year nonprofits | Early March: audit must be done |
| 15 Jun | Q2 estimated tax (federal & NYS) | Individuals, pass-through owners | Early June |
| 20 Jun | NYS quarterly sales tax (Mar–May) | Quarterly sales tax filers | Early June |
| 31 Jul | Form 941 (Q2); NYS-45; Form 5500 | Employers; benefit plan sponsors | Mid-July; March if audited |
| Aug – Nov | Tax planning window: full-year projection and year-end actions | Everyone | This is the quarter that matters |
| 15 Sep | Extended 1120-S and 1065 returns; Q3 estimates | Extended filers | Mid-July |
| 20 Sep | NYS quarterly sales tax (Jun–Aug) | Quarterly sales tax filers | Early September |
| 15 Oct | Extended 1120 and 1040 returns | Extended filers | Mid-August |
| 31 Oct | Form 941 (Q3); NYS-45 | All employers | Mid-October |
| 15 Nov | Extended Form 990 | Nonprofits on extension | September |
| Dec | Execute year-end planning actions; verify all contractor W-9s | Everyone | Decided in the Q3 window |
| 31 Dec | Hard stop for most year-end tax positions | Everyone | Nothing after affects the year |
These are the standard statutory dates for calendar-year filers. Fiscal-year filers follow a different schedule, some obligations depend on assigned filing frequency that changes as you grow, and rules change. Confirm your own dates against IRS and New York State Department of Taxation and Finance guidance or with your CPA. The full commentary is in 2026 Tax Deadlines Every New York Business Should Calendar Now.
Longer-form writing on the problems we are asked about most, written by the partner who does the work.
Answered honestly, including where the honest answer is that you may not need us.
For recurring outsourced accounting (monthly close, reconciliations and a reporting pack), fees are typically a fixed monthly amount scaled to transaction volume, entity count and complexity rather than to revenue alone. A single-entity service business and a three-entity manufacturer at the same revenue are very different pieces of work.
Project work such as an audit, a controls assessment or catch-up bookkeeping is quoted at a fixed fee after a scoping call. The most reliable way to get a comparable number from any firm is to ask for a written scope listing deliverables and dates, then compare scopes rather than headline prices. A cheaper fee for half the deliverables is not cheaper.
The practical triggers are: a lender or investor requiring GAAP-basis statements; inventory becoming significant, since cash basis systematically misstates margin where stock is held; revenue earned in a different period from when it is collected; or reaching the point where decisions are being made on numbers that do not reflect what the business actually earned that month.
Worth noting that the tax basis and the management reporting basis can differ. Many businesses report internally on an accrual basis while continuing to file on a permitted cash basis. You do not always have to choose one for both purposes.
A common working policy is seven years for general accounting records, tax returns and supporting documentation. Some categories are kept permanently: formation documents, board minutes, property and major asset records, and pension or benefit plan records.
Employment records and payroll carry their own retention rules, and grant agreements frequently impose longer periods than your general policy, which is a good reason for the retention policy to be written down rather than assumed. Confirm your specific requirements rather than applying one blanket rule across everything.
A bookkeeper records transactions. An accountant prepares and interprets financial statements and may hold no license at all. A CPA is licensed by a state board, must meet education and examination requirements, completes mandatory continuing education, and is subject to professional standards and disciplinary oversight. Only a CPA can issue an audit or review report.
For routine transaction processing, a good bookkeeper is often the right answer and considerably cheaper. The CPA layer earns its cost where judgment, assurance or exposure is involved.
Yes, and mid-year is usually the better time. Changing in February means the new firm inherits a filing deadline before they understand the business; changing in June or July gives them a full quarter to assess, clean up and prepare properly.
Your records are yours. A professional predecessor will provide the trial balance, depreciation schedules, prior returns and workpapers needed for continuity. If a firm is obstructive about handover, that is itself informative.
Read the actual requirement before assuming. A meaningful number of organizations buy an audit when the covenant, funder agreement or bylaw asks for a review, which provides limited assurance and typically costs a third to a fifth as much.
The difference is in the level of assurance: an audit tests balances against third-party evidence and issues an opinion; a review uses analytical procedures and inquiry and issues a conclusion. Our audit and assurance page sets out the full comparison.
Send it to your CPA the day it arrives. Do not ignore it, and do not pay it reflexively. Both are expensive in different ways.
Most notices carry a 30-day response window and the options narrow sharply once it passes. A meaningful share are wrong or partially wrong: a misapplied payment, a return processed against the wrong period, a mismatch from a late information return. Check the notice against the filed return and the account transcript before agreeing with any of it.
Possibly, and we will say so. Below roughly $2 million in revenue, with a simple structure and no audit or assurance requirement, a good bookkeeper plus a seasonal tax preparer is usually the right and considerably cheaper answer.
The CPA firm relationship starts earning its cost when complexity arrives: multiple entities, multi-state obligations, an audit requirement, outside capital, inventory, or decisions large enough that being wrong about them is expensive. Selling you something heavier than you need is a short-term win and a long-term loss for both of us.
If a checklist raised a question about your own numbers, thirty minutes with someone looking at your actual figures will answer it faster than another download.