Michael Pirumov | Let’s Ledger | Fast, Clean Books for SaaS Startups

Oliver Buchannon

Michael Pirumov

I help B2B SaaS companies automate accounting and close the books fast.

Ecommerce Bookkeeping

The Ultimate Shopify Bookkeeping Checklist for Online Store Owners

Dec 4, 2025

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22 min read

The Ultimate Shopify Bookkeeping Checklist for Online Store Owners

Michael Pirumov

Treating Google Sheet Like a Database

Sep 17, 2025

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6 min read

Treating Google Sheet Like a Database

How to bring database-level reliability to Google Sheets for cleaner, faster closes.

Michael Pirumov

Automation

+1

How to Use ArrayFormulas in Google Sheets to Speed Up Your Month-End Close

Sep 6, 2025

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9 min read

How to Use ArrayFormulas in Google Sheets to Speed Up Your Month-End Close

Why ArrayFormulas beat copy-paste every time.

Michael Pirumov

Monthly Close

Why Your Month-End Close Might Take Too Long (And How to Fix It)

Aug 3, 2025

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13 min read

Why Your Month-End Close Might Take Too Long (And How to Fix It)

Michael Pirumov