ADP
CosmoLex
| Feature | ADP | CosmoLex |
|---|---|---|
| Pricing | From $79/mo | From $89/mo |
| Free Plan | ✗ No | ✗ No |
| Rating | 4.1 / 5 | 4.3 / 5 |
| Best For | small-businesses, mid-market-companies, enterprises, multi-state-employers | solo-attorneys, small-law-firms, bookkeeping-challenged-firms, trust-heavy-practices |
| Founded | 1949 | 2008 |
| Payroll Processing | ✓ | ✗ |
| Tax Filing | ✓ | ✗ |
| Benefits Administration | ✓ | ✗ |
| Time Attendance | ✓ | ✗ |
| Hr Management | ✓ | ✗ |
| Talent Management | ✓ | ✗ |
| Compliance | ✓ | ✗ |
| Practice Management | ✗ | ✓ |
| Legal Accounting | ✗ | ✓ |
| Trust Accounting | ✗ | ✓ |
| Time Billing | ✗ | ✓ |
| Document Management | ✗ | ✓ |
| Client Portal | ✗ | ✓ |
✓ ADP Pros
- Industry leader with 70+ years of payroll expertise
- Scalable from 1 employee to 100,000+
- Automatic tax filing and compliance updates
- Comprehensive benefits and retirement administration
✗ ADP Cons
- Pricing requires custom quote (not transparent)
- Interface feels dated compared to modern HR tools
- Customer service quality varies by region
✓ CosmoLex Pros
- Built-in legal accounting
- Trust/IOLTA compliance
- No need for QuickBooks
- All-in-one platform
✗ CosmoLex Cons
- Interface not the most modern
- Limited third-party integrations
- Steeper learning curve for accounting
The Verdict
ADP is built for small businesses and mid market companies, with a focus on payroll-processing and tax-filing. CosmoLex targets solo attorneys and small law firms and leads with practice-management and legal-accounting.
On pricing, ADP is the clear winner for budget-conscious users — starting at $79/mo compared to $89/mo for CosmoLex. That $10/mo difference adds up quickly for growing teams.
Neither tool offers a free plan, so factor the subscription cost into your decision from the start.
Feature-wise, ADP offers broader built-in capabilities (7 features vs 6), while CosmoLex takes a more focused approach — which can mean a simpler, faster onboarding experience.
This is a genuinely close comparison. If you can, sign up for both free trials (where available) and run a one-week test with your actual team tasks before deciding.