Most LA small businesses benefit from monthly bookkeeping that follows a predictable cadence. By the 5th of each month, you should know what happened last month. By the 10th, your books should be reconciled. By the 15th, any tax filings from the prior period should be done. This guide is a practical template for what monthly bookkeeping should look like in a healthy LA small business.

Why monthly matters

Annual bookkeeping is a recovery exercise. Quarterly is a compromise. Monthly is the operating cadence that makes financial decisions possible.

A month-by-month rhythm:

  • Catches errors while they're small. A $200 bank reconciliation error in January compounds into a $2,400 year-end reconciliation mess.
  • Makes tax filings accurate. Quarterly estimates need up-to-date books. Sales tax filings need month-end totals.
  • Lets you make real-time decisions. Hiring, pricing, inventory, and cash decisions need current data, not last quarter's.
  • Reduces stress. The pre-quarterly-estimates panic is a feature of doing books quarterly, not a feature of doing them monthly.

For most LA small businesses, monthly books are the difference between knowing your business and finding out about it.

What your bookkeeper should be doing by the 5th

By the 5th of the new month, you should have:

  • A draft or final month-end P&L for the prior month
  • Bank reconciliation status — most books are reconciled within 5 business days
  • Categorization complete for all major transactions in the prior month
  • Outstanding items flagged — invoices received but not paid, deposits in transit, etc.
  • Cash position known — what's in the bank, what's expected, what bills are coming up

Some of this happens on your bookkeeper's dashboard rather than a separate report, but the information should be available to you by the 5th.

What your bookkeeper should be doing by the 10th

By the 10th, the prior month should be reconciled and reported:

  • All bank and credit card accounts reconciled for the prior month
  • Categorized transactions for everything cleared through your accounts
  • Reconciliation reports for any discrepancies
  • Monthly P&L finalized
  • Balance sheet for businesses that use it
  • Cash flow report for businesses with non-trivial cash flow

For businesses with sales tax, this is also when prior-month sales tax should be calculated and ready for filing.

What your bookkeeper should be doing by the 15th

By the 15th, prior-month sales tax and payroll-related filings should be filed:

  • Sales tax returns for the prior month, if you're filing monthly
  • Quarterly payroll tax filings when due (Form 941, state equivalents)
  • 1099 prep for year-end season (starting in October, ramp up through January)

For most businesses, the 15th is also when quarterly estimated tax prep begins (for the following month if you're doing taxes per quarter).

What you should be doing

You're not the bookkeeper, but you're the decision-maker. A few things only you can do:

Within the first 5 days of the month

  • Reply to bookkeeper questions. They ask about categorization, receipt matching, and unusual transactions. Slow replies multiply throughout the month.
  • Send any receipts you have. Most modern systems allow photo capture.
  • Confirm big transactions that might not be obvious from your account names.

Within the first 10 days

  • Review the prior month's P&L. Even a 5-minute review catches most problems.
  • Check unusual transactions for miscategorization.

Within the first 15 days

  • Process any approvals your bookkeeper needs.
  • Pay bills as scheduled.
  • Review upcoming payroll for accuracy.

Monthly habits

A few habits that make your bookkeeper much more effective:

  • Save receipts consistently. The worst bookkeeping isn't from bookkeepers — it's from missing receipts.
  • Note unusual transactions in your own records. Memory of a one-off $400 charge from six weeks ago is impossible; a quick note is useful.
  • Forward emails to your bookkeeper when they involve vendors, clients, or financial decisions.

What a healthy monthly package looks like

By the 15th of the month, you should expect:

  • A reconciled prior month (or close to it)
  • A monthly P&L
  • A balance sheet for businesses with multi-month context
  • A cash flow update for businesses with cash concerns
  • Confirmation of any filings due
  • Communication about anything that needs your attention

If any of these routinely arrive late, talk to your bookkeeper. Recurring late books usually mean overwork or understaffing on the bookkeeper's side, which is solvable.

Cash flow reports for service businesses

LA service businesses often have more volatile cash flow than other types:

  • Project-based income with milestone payments
  • High fixed costs (rent, payroll, insurance) that don't match revenue timing
  • Seasonal patterns — most businesses have a slow and busy season
  • Customer concentration that creates feast-or-famine cycles

A monthly cash flow report can include:

  • Beginning cash position
  • Expected revenue for the month (less committed)
  • Expected expenses (more committed — payroll, rent, taxes, vendors)
  • Net cash position at month-end (projected)
  • Variance to budget or to last month

For LA businesses with significant cash flow variability, these reports are far more useful than P&L alone, because the cash position determines whether you can make next month's payroll, not the P&L.

What gets reported when

A simple reporting cadence that works for most LA small businesses:

  • Weekly (internal): Cash position, open invoices, upcoming bills. Often informal — email or text.
  • Monthly: P&L, balance sheet, cash flow update, prior-month close.
  • Quarterly: Quarterly estimated tax prep, deeper review of trends, planning.
  • Annually: Year-end close, tax preparation, business review.

Adjust as needed — if you're growing fast or your business is volatile, weekly cash updates might be more important. If your business is stable, monthly may be enough.

What to ignore

A few things monthly bookkeeping does not include:

  • Tax filing. Most bookkeepers don't file taxes; that's your CPA. Your bookkeeper produces tax-ready books; your CPA prepares and files the returns.
  • Strategic consulting. A bookkeeper gives you data; a strategic advisor helps you make decisions. They're different roles.
  • Legal advice. Contracts, liability, and entity structure are lawyer territory, not bookkeeping.
  • Investment management. Books track what's happened; investments are typically a separate conversation with a financial advisor.

If your bookkeeper is doing all of these, they're either expanding scope or taking roles they shouldn't. A clear engagement letter should define what bookkeeping includes.

What to ask your bookkeeper to add

A few reports that often get missed but are useful:

  • A/R aging report for any business that invoices customers
  • A/P aging report for any business that pays vendors on terms
  • Profit by service or product for businesses with multiple revenue streams
  • Cash forecast for businesses with seasonal or project-based cash flow

If you don't currently get any of these and they apply to your business, ask. Most bookkeepers can add reports without major cost.

A practical monthly checklist for the business owner

A condensed version you can print or save:

Day 1–5

  • [ ] Email any receipts or invoices you received late
  • [ ] Reply to bookkeeper questions
  • [ ] Confirm cash position

Day 5–10

  • [ ] Review prior month P&L (15 minutes)
  • [ ] Flag unusual transactions
  • [ ] Process any bookkeeper approvals

Day 10–15

  • [ ] Approve payroll (if applicable)
  • [ ] Approve any vendor payments
  • [ ] Confirm filings are happening

Day 15–30

  • [ ] Look ahead to next month's cash
  • [ ] Update your forecast if needed
  • [ ] Take care of any tax reserve transfers

If you can do this every month, your books stay clean, your filings are on time, and your business decisions are informed.

What if you're behind

Most LA businesses are at least a few months behind on their books at some point. Catching up is a project, not a month of work:

  • 3 months behind: Usually a quarterly catch-up — usually $500–$1,500 in addition to monthly services
  • 6 months behind: A dedicated cleanup engagement — $1,500–$3,000
  • 12+ months behind: A significant project — $3,000–$10,000+

Catch-up work is most expensive when it involves unfiled payroll, sales tax, or tax returns in addition to bookkeeping. Most bookkeepers will quote catch-up separately.

What we offer

Bookkeepers Los Angeles provides monthly bookkeeping for small businesses across the LA area — reconciliations, monthly reports, AP, payroll, and tax-ready books. We focus on a predictable monthly cadence so you know what you have, when you have it, and where your business stands. Free consultations available.

📞 Call (323) 709-8818 or [request a free consultation online](https://www.bookkeeperslosangeles.com/contact-us). Office: 355 S. Grand Ave Suite 2450, Los Angeles, CA 90071.