Built to Build
Amber Sims started designing programs before she ever stepped into a corporate office. Growing up on a farm with nothing to do, her father — a computer programmer — sat her down and taught her to code her own computer games. She was ten years old. That same instinct — figure out how it works, then build something better — is what drives everything ReVerify does today.
With over 15 years across payroll tax compliance, MasterTax consulting, data analytics, AI-driven solutions, and bank reconciliation, Amber went from Level 1 technical support to the person Fortune 500 companies call when no one else can fix the problem. From one-person tax departments to some of the largest payroll operations in the world — ASO and PEO — she built a reputation on one thing: you call Amber, the issue gets resolved.
Not Just Consulting — Proof of Impact
Amber doesn’t just advise — she builds. Here’s a sample of what she’s delivered across industries.
Digital Wallet — WSOP
Helped develop the digital wallet platform for the World Series of Poker — a high-stakes, high-visibility product that had to be flawless from day one.
Ethanol Today Magazine
Created a publication for the ethanol industry from scratch — concept, design, and execution. It’s still in production today.
Sales Process Transformation
Overhauled a sales department’s entire review process — built the data tracking, evaluation framework, and performance benchmarks that turned the worst-performing rep into the best.
MasterTax Knowledge System
Designed a proprietary MasterTax knowledge checklist that combined individual performance data with departmental tax data — used for complex issue resolution, employee development tracking, and annual performance reviews.
ADP Women’s Inclusion Network
Started behind the scenes in backend tech support — building content from scratch using Camtasia, producing training materials no one else would — and grew into the International Chairwoman of ADP’s Women’s Inclusion Network. Led programming that spoke to the real, unfiltered experience of being a woman managing a career while juggling life as a wife, mother, friend, and sister. Not a corporate checkbox — a movement built by someone who lived it.
Oracle DBA & Data Migration
Worked alongside DBAs on Oracle database server upgrades and large-scale data migrations — because understanding the infrastructure matters as much as the tax logic running on top of it.
Multiple award winner in payroll tax excellence. Leveraging MIT-level AI analytics expertise to build next-generation consulting tools — including a custom MasterTax training program and a payroll industry podcast.
What We Do
ReVerify delivers expert consulting across four core pillars — each backed by years of real-world implementation experience.
Tax Advisory & Compliance
SUI rate protests, buydowns, and exchanges. Tax notice resolution, lien and warrant handling, EIN registration, and power of attorney services. We keep you compliant so you can focus on running payroll.
MasterTax Consulting & Training
On-site and remote MasterTax training, file spec development for homegrown PTS/RTS integration files, and custom configuration. If it touches MasterTax, we handle it.
Technology & Innovation
Data analytics, custom development projects, SOP development, and AI-driven solutions informed by advanced AI analytics methodologies. We bring modern intelligence to legacy problems.
Bank Reconciliation
End-to-end payroll tax bank reconciliation services that identify discrepancies before they become audit findings. Accurate books, every time.
Why Clients Choose ReVerify
Real Experience
Not theoretical advice — strategies built from 15+ years of doing the work across every type of HCM environment.
Enterprise-Ready
Built for organizations running complex, multi-state payroll operations that demand precision and accountability.
Full Service
From tax compliance to MasterTax training to bank reconciliation — one consultant who covers it all so you don’t have to manage five vendors.
Behind Every Solution Is a Person Who Cares
Amber isn’t just a consultant with credentials. She’s someone who has built things from nothing, fought for every seat at the table, and never stopped learning. From Level 1 tech support to trusted advisor for some of the largest payroll operations in the country, every step was earned. She brings that same drive to every client engagement: show up, dig in, and don’t leave until it’s right.
Ready to Work With a Consultant Who Gets It?
Whether you need MasterTax expertise, tax compliance support, or a full operational overhaul — ReVerify is ready.