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About UsBig-firm experience, working for your business.
Regnum Tax is a tax, accounting and payroll firm based in Northridge, California, serving small and midsize businesses in every state.
We're not an outsourced vendor. We work like part of your business.
Experts in
- A team that knows your business
- Every return and report reviewed
- AI as a tool, never the answer
- One call reaches the people doing the work
From businesses with a few thousand dollars in monthly revenue to private equity firms of $650 million.
Vast experience in accounting and bookkeeping.
Our team built its experience at large national and multinational accounting firms, serving clients across the full range: owner-run businesses bringing in a few thousand dollars a month, growing companies with multiple entities and locations, and private equity firms of $650 million.
We started Regnum Tax to bring that standard of work to small and midsize businesses. Every engagement gets the same review process, documentation and attention to deadlines that large firms are known for, delivered by a team you can reach directly.
Today we handle tax, accounting and payroll as one firm, for clients in every state. As an authorized ADP provider, we also run payroll from A to Z, customized to each client, with the savings passed on.
Big-firm standards
Reviewed work, documented support and every deadline tracked, the way large firms do it.
Right-sized service
Scaled to your business, whether you are a first-year LLC or a multi-entity group.
Direct access
You work with the people doing the work, not a call center.
Experts in the industries we serve.
Our team has specialists in each of these industries. They know how each one earns, spends, pays its people and gets taxed. Every industry has its own tax traps; here is what we watch for.
Restaurants & hospitality
Tipped staff, split shifts and sales tax on every ticket. We report tips correctly, claim the FICA tip credit where it applies and keep sales tax returns matched to your POS.
Law firms
With or without an IOLTA account. For firms that hold client funds, we keep client trust ledgers, perform monthly three-way reconciliations and record earned-fee transfers so trust money never mixes with firm money. For every firm, we track billing, case costs and partner draws, and prepare the firm's returns.
Healthcare & medical practices
From mental health and rehab facilities to optometry practices. Clinics, treatment centers and private practices carry professional entities, provider payroll and tight cash cycles. We keep payroll, books and returns aligned as the practice grows or changes.
Education & child care
Private schools, tutoring centers, preschools and daycares. We handle tuition billing and deferred tuition, track state subsidy and grant payments, run staff payroll around the school calendar, and prepare Form 990 for nonprofit schools.
Construction & contractors
Subcontractors, job costs and workers who move between sites. We track 1099 vendors, keep job costing in the books and file payroll on time for every crew.
Manufacturing
Raw materials, work in process and finished goods. We keep inventory and cost accounting accurate, track equipment and depreciation, look at research credits where they apply, and run shift and overtime payroll.
Transportation & trucking
Fuel tax, heavy vehicle tax and drivers on the road. We handle IFTA quarterly returns, Form 2290, driver per diem, truck depreciation, and payroll or 1099s for owner-operators.
Warehousing & logistics
Shift work, overtime and heavy equipment. We run shift and overtime payroll, track equipment and depreciation, keep customer billing in the books, and watch nexus when goods are stored in several states.
Real estate & property
Rental income, depreciation and entity structure decide what you keep. We handle rental schedules, cost recovery and the LLCs that hold your properties.
Factoring companies
Purchased receivables, advances, reserves and fees all need to be tracked by client. We record discount income correctly, reconcile reserve accounts, and account for recourse and bad debt in the books and on the return.
Professional services
Consultants, agencies and firms often run as S corporations. We set reasonable owner pay, run payroll and plan estimates so there is no April surprise.
Social media marketing
Agencies, influencers and content creators. We reconcile platform and sponsor payouts to your 1099-K and 1099-NEC forms, track ad spend and equipment, pay contractors correctly, and plan S corporation status and quarterly estimates as income grows.
Retail & e-commerce
Inventory, merchant deposits and sales tax across states and channels. We track where you have nexus, reconcile payouts to the books and keep every sales tax filing current.
Startups & new businesses
The first year sets the pattern. We help choose the entity, register with the state, set up books and run your first payroll correctly.
Grocery stores
Thin margins, high volume and a mix of taxable and exempt items. We keep inventory and cost of goods accurate, reconcile POS, card and EBT deposits, and file sales tax on the items that are actually taxable.
Don't see your industry?
These are the businesses we see most, not the only ones we serve. Tell us about yours.
Contact usPeople first. AI as a tool.
Our bookkeepers don't rely on AI alone
AI is a great tool for analyzing numbers, and we use it. But small businesses are often more complex than they look: owners paying expenses personally, cash sales, several entities, trust accounts, seasonal staff. Software can miss the context behind a transaction. Our bookkeepers review your accounts themselves and ask when something doesn't look right, instead of guessing.
Part of your business, not an outsourced vendor
You should know the people keeping your books and running your payroll, and they should know your business. You work with the same team every month. They learn how you operate, what's coming up and what matters to you, and you can pick up the phone and reach them. We work like your own in-house accounting department.
Ready to get started?
See your price in a few minutes, create your account and we'll take it from there. No call needed.