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Outsourced accounting services for U.S. businesses

One monthly service covers your bookkeeping, month-end close, payables and receivables, and the year-end tax return. Flat rate, month to month, live in 48 hours.

Get a free books review
U.S. businesses served
250+

U.S. businesses served

Transactions reconciled
150K+

Transactions reconciled

Average onboarding
48 hrs

Average onboarding

Lower than in-house
60%

Lower than in-house

Certified on the platforms your business already runs on

  • Intuit QuickBooks ProAdvisor Certified Level 1
  • Intuit QuickBooks ProAdvisor Certified Level 2
  • Gusto Payroll Certified
  • Xero Payroll Certified
  • ISO 9001:2015 Certified Company
  • GDPR Compliant
  • ISO 27001:2022 Certified Company
  • AICPA SOC 2 Type II audited
  • HIPAA compliant

What outsourced accounting actually covers.

Outsourced accounting services mean an outside provider keeps your books, closes each month and files your returns, so you do not have to hire in-house. The work covers daily transactions, bank reconciliations, monthly reports, and the bills you pay and invoices you send. It all happens in your own software, on a fixed monthly cycle, for a flat monthly fee.

A calculator, printed charts and ring binders on an accounting desk

Most U.S. small businesses reach this point the same way. The bookkeeping outgrew a spreadsheet, and then the reporting outgrew the bookkeeping. Now three different people touch the numbers, and none of them owns them. Outsourcing replaces that with one engagement at one flat rate. It runs from daily transactions to the filed return, and every close gets a senior review before it reaches you.

One engagement, not three vendors
Bookkeeping, month-end close, reporting and AP/AR run under one scope and one price. Nothing slips between a bookkeeping service, a CPA and a sales tax vendor.
Your software, your data
We work inside your existing QuickBooks, Xero, Sage or NetSuite file. Your books never land on a platform you would have to give up.
A fixed monthly rate
Priced on transaction volume and scope, not billed by the hour. Asking a question never starts a meter.
Month to month
No long-term contract, no setup fee and no cancellation fee. You can stop at the end of any month.

We work inside the tools you already use.

No forced migrations and no proprietary portal. We plug into your existing stack, or help you pick the right one during onboarding.

QuickBooksXeroSageOracle NetSuiteBill.comGustoStripeShopifyHubdocDextAvidXchangeWaveZoho BooksLacerteDrakeProConnectUltraTax

Messy books vs. clean books.

The gap is not neat spreadsheets. It is money, time and choices, and you feel it every month.

Without a monthly closeWith Twelix
  • Tax seasonScrambling for documents, filing lateTax-ready year-round, filed on time
  • Cash flowFlying blind, not sure you make a profitClear profit visibility, month to month
  • Your timeHours lost wrestling spreadsheetsTime back to grow the business
  • DeductionsMissed write-offs, overpaying the IRSEvery deduction captured, real savings
  • DecisionsGuesswork based on gut feelConfident calls backed by real numbers
  • Peace of mindConstant stress, always behindCalm, current, in control

Live in four steps, not four months.

A clear onboarding plan takes the guesswork out of switching. Most clients are fully handed over within 48 hours of the first call.

Discovery call

Thirty minutes on your business, your software and where the books stand today. You get a straight read on the file, whether or not you go ahead.

  • Day 0
  • No obligation
  • Your software and backlog reviewed
A business owner on a phone call at her desk with a laptop open

Custom proposal

A flat monthly quote and a written scope, so you know exactly what is covered and what it costs before anything starts.

  • Within 24 hours
  • No hourly billing
  • Cleanup quoted separately if needed
A business owner reading through a written proposal with a pen in hand

Secure onboarding

You grant read-only access to your accounts and software. We run a health check on the file before we touch a single entry.

  • Within 48 hours
  • Access you control and can revoke
  • Chart of accounts checked first
A combination lock resting on a laptop keyboard

Monthly rhythm

Transactions categorized, every account reconciled, and CPA-ready statements delivered by the 10th, on the same dates every month.

  • Every month
  • Each close checked twice before delivery
  • Replies within 24 hours on business days
An open monthly planner with dates marked on a wooden desk

Real stories from business owners.

Owners who moved their books to Twelix, on what changed afterward.

Eric Wexler, Obsedian Media LLC
Chad Fischman, Fischman Asphalt
Amy Stone, Guru Pet Company
Prathan Powell, The Black In HR
Eric Wexler, Obsedian Media LLC
Chad Fischman, Fischman Asphalt

01 of 04

Hours of bookkeeping delivered
11,000+

Hours of bookkeeping delivered

Five-star client reviews
99%

Five-star client reviews

Industries served
14+

Industries served

Closes reviewed before delivery
100%

Closes reviewed before delivery

Get a free review of your books.

Behind, stuck, or not sure the numbers are right? Send us the basics. We will review your file and tell you plainly what we find.

  • A line-by-line look at how your accounts are actually categorized
  • Reconciliation gaps, duplicate entries and unclassified transactions flagged
  • Deductions you're likely leaving on the table
  • A written cleanup scope and flat-rate quote, with no obligation
… =

Questions owners actually ask.

  1. Outsourced accounting services are a monthly service in which an outside provider runs your finance back office instead of an in-house hire. It covers your bookkeeping, bank reconciliations, month-end close and financial statements. It also covers the bills you pay, the invoices you send and the returns filed at year end. You pay a flat monthly fee, and the work stays in your own software.

  2. Twelix charges a flat monthly rate set by your transaction volume and scope, with no hourly billing and no setup fee. That is usually well below the cost of doing it in-house, which can pass $200,000 a year once a bookkeeper, an accountant and a controller are all on payroll. You get a fixed written quote within 24 hours of your free discovery call.

  3. Most small businesses start with bookkeeping and add accounting once a lender, investor or board asks for accrual-basis statements. Bookkeeping records what happened: transactions categorized, accounts reconciled and the ledger kept current. Accounting adds accruals, prepaids and a reviewed set of statements, so income and costs land in the right month. See small business accounting services for where bookkeeping ends and accounting begins.

  4. We work inside the software you already use, including QuickBooks Online, Xero, Sage, NetSuite, Gusto, Shopify and Stripe. We never move your books to a system of our own, and you never have to switch. Twelix holds QuickBooks ProAdvisor and Xero advisor certifications.

  5. Most cleanup projects take 3 to 15 business days, depending on how far behind the books are and how many accounts need reconciling. You get a completion date with the quote, before any work begins. See bookkeeping cleanup services for how the project runs.

  6. Yes, your data stays in your own accounting system and is accessed read-only wherever the platform allows it. Twelix is ISO 27001 and ISO 9001 certified, SOC 2 Type II audited and HIPAA compliant. Access is set by role, every action is logged, and anyone who can see your file has signed an NDA. See our data security page for every control.

  1. No, Twelix is month to month with no long-term contract and no cancellation fee. There is no setup fee either. You stay because the service is worth it, not because you are locked in.

  2. We serve 14 industries, including e-commerce, construction, real estate, restaurants, healthcare, logistics, SaaS, professional services and nonprofits. Each engagement starts from a chart of accounts built for that industry. Its close checklist also covers the spots where those books usually go wrong.

  3. Every account runs from the written close checklist, built during onboarding. It records how you invoice, which vendors recur and how your chart of accounts is set up. Each close is prepared against that checklist and then reviewed a second time before it reaches you. Because the steps are written down, your statements arrive on the same dates and in the same format every month.

  4. Yes, and most clients keep their CPA. We prepare CPA-ready financials and work with your tax preparer directly. That often lowers their fee, because they no longer spend hours rebuilding the year.

  5. Yes, we run payroll on your behalf inside your own payroll account, such as Gusto, ADP or QuickBooks Payroll. Payroll stays under your company's name, and Twelix never becomes the employer. We also handle the bookkeeping side: payroll entries, payroll taxes and benefits are matched against what was actually filed.

  6. You receive a complete financial package by the 10th of the following month. It includes a profit and loss statement, balance sheet, cash flow statement, and receivable and payable aging, plus a summary of key changes. A walkthrough call is available whenever you want one.

Stop guessing what your numbers say.

Book a 30-minute call. We'll tell you exactly where your books stand and what it costs to fix, before you commit to anything.

Talk to us first

Month-to-monthNo setup feeOnboarded in 48 hours