Add-On Services
Add-on services are the day-to-day accounting work that keeps your numbers accurate: bookkeeping and data entry, payroll, 1099 and sales tax support, and accounts payable and receivable. Corvus Accounting offers them alongside our core strategy services, so the books that feed your cash flow forecast, tax estimate, and job costing reports are always current.
Strategy is only as good as the data behind it. These services are add-ons to a core engagement, not standalone bookkeeping packages.
By Suzanne Leonard, Founder, Corvus Accounting · Last reviewed November 2026
Free, no-obligation consultation. Serving small businesses nationwide.
Why Pair Them
Your forecast and tax estimate update from books reconciled on schedule.
The same team sees the transactions and the plan, so problems surface sooner.
Costs are coded to the right job from the start.
No gaps between a bookkeeper, a payroll provider, and an advisor who never talk.
What's Available
Recording, categorizing, and reconciling every transaction so your financial statements are accurate, in your current software or Zoho Books.
Set up correctly through the right partner, then maintained on schedule by us.
Managing the bills you owe (AP) and the money customers owe you (AR), both of which drive cash flow.
How It Connects
| Add-On | Feeds Into |
|---|---|
| Bookkeeping & Data Entry | Every core service: scorecard, forecast, tax estimate, job costing |
| Payroll & HR, 1099 & Sales Tax | Tax Liability Advisory and labor costs in Job & Project Costing |
| Accounts Payable & Receivable | Cash Flow Forecasting: timing of money in and out |
Form 1099-NEC reports nonemployee compensation and is generally due by January 31. See the IRS instructions for current thresholds and deadlines.
FAQ
Our bookkeeping, payroll, and AP/AR services are add-ons to a core engagement such as Fractional CFO, Cash Flow Forecasting, or Tax Liability Advisory. We pair them so the books behind your strategy are accurate and current. If you only need books cleaned up before starting strategy work, we can scope that during your free consultation.
Yes. We reconcile past bank and credit card activity, correct categorization, and bring your books current before monthly bookkeeping begins. Cleanup is scoped based on how many months are behind and the number of accounts involved.
We prepare year-end 1099s from your books and help you collect the W-9 information you need from each contractor during the year. Starting W-9 collection early avoids a January scramble. We also review whether each worker is properly classified as a contractor.
Faster collections mean more cash on hand without more sales. We invoice promptly, track who owes what, follow up on overdue balances, and report AR aging so you can see slow payers early. Those collection patterns also make your cash flow forecast more accurate.
Yes. We partner with two payroll and HR providers and recommend the one that fits your location and complexity. We handle the account setup with you, then maintain your payroll processing going forward, so payroll stays tied to your books, labor costs, and cash flow forecast.
For businesses that collect sales tax in a single state, we set up the account and maintain the filing schedule ourselves. If you need to collect in multiple states, we work alongside your chosen sales tax provider, such as Avalara or TaxJar, to make sure your books, collections, and filings stay compliant.
Add-on services are scoped and quoted after your free consultation, based on transaction volume, number of accounts and employees, and the condition of your books.
This page is for general education and isn’t tax or legal advice for your specific situation.
Related: Fractional CFO & Strategy · Cash Flow Forecasting · Tax Liability Advisory · Job & Project Costing
Beyond the Numbers
Book a free, no-obligation consultation and we’ll scope the add-ons that fit your core service and the condition of your books.
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