Discovery Cost Calculator

Estimate the total cost of discovery in litigation by entering document volumes, ESI data volume, attorney and paralegal hours, e-discovery software fees, deposition counts, and interrogatory costs. This calculator provides a comprehensive discovery cost estimate based on standard industry rates and litigation practices.

Document Count:
ESI Data Volume (GB):
Attorney Review Hours:
Paralegal Hours:
E-Discovery Software ($):
Number of Depositions:
Number of Interrogatories:
Discovery Cost Summary
Document Review:$3,750
ESI Processing:$7,500
Attorney Review:$35,000
Paralegal Services:$10,000
E-Discovery Software:$5,000
Deposition Costs:$15,000
Interrogatory Costs:$5,000
Total Discovery Cost:$81,250

Cost Breakdown

What Is the Discovery Cost Calculator?

The Discovery Cost Calculator is a legal tool designed to help attorneys, paralegals, litigation support professionals, and clients estimate the total costs associated with the discovery phase of litigation. It accounts for document review, electronic data processing, attorney and paralegal time, e-discovery software licensing, deposition expenses, and interrogatory preparation.

Discovery often represents the most expensive phase of litigation, sometimes accounting for 50-80% of total case costs. Understanding these costs upfront enables better budgeting, informed settlement decisions, and effective proportionality arguments under the Federal Rules of Civil Procedure.

By inputting case-specific variables, users can generate realistic cost projections that reflect current market rates for legal services and e-discovery technology. These estimates serve as a foundation for discovery planning, cost-sharing negotiations, and fee petition preparation.

Formula

Document Review = Document Count × $0.75 per document

ESI Processing = Data Volume (GB) × $150 per GB

Attorney Review = Attorney Hours × $350 per hour

Paralegal Services = Paralegal Hours × $125 per hour

Deposition Costs = Number of Depositions × $5,000 per deposition

Interrogatory Costs = Number of Interrogatories × $2,500 per set

Total Discovery Cost = Document Review + ESI Processing + Attorney Review + Paralegal Services + E-Discovery Software + Deposition Costs + Interrogatory Costs

Example Scenario

Situation: A commercial litigation case involves 5,000 documents, 50 GB of ESI data, 100 attorney review hours, 80 paralegal hours, $5,000 in e-discovery software, 3 depositions, and 2 sets of interrogatories.

Calculation: Document Review = 5,000 × $0.75 = $3,750. ESI Processing = 50 × $150 = $7,500. Attorney Review = 100 × $350 = $35,000. Paralegal Services = 80 × $125 = $10,000. Software = $5,000. Depositions = 3 × $5,000 = $15,000. Interrogatories = 2 × $2,500 = $5,000. Total = $81,250.

Detailed Breakdown

CategoryAmount% of Total
Document Review$3,7504.6%
ESI Processing$7,5009.2%
Attorney Review$35,00043.1%
Paralegal Services$10,00012.3%
E-Discovery Software$5,0006.2%
Deposition Costs$15,00018.5%
Interrogatory Costs$5,0006.2%
Total Discovery Cost$81,250100.0%

Frequently Asked Questions

What is discovery cost in litigation?
Discovery cost refers to the expenses incurred during the pre-trial phase where parties exchange relevant information and evidence. These costs include document review, electronic data processing, attorney review hours, paralegal work, e-discovery software, depositions, and interrogatories.
How are discovery costs calculated?
Discovery costs are calculated by summing document review costs, ESI processing fees, attorney review hours, paralegal hours, e-discovery software expenses, deposition costs, and interrogatory expenses. The formula is: Total = DocumentReview + ESIProcessing + AttorneyReview + Paralegal + Software + DepositionCosts + InterrogatoryCosts.
What is ESI in discovery?
ESI (Electronically Stored Information) includes emails, documents, databases, social media content, and other digital evidence. Processing ESI requires specialized software and expertise, making it one of the most significant discovery cost factors.
How much does e-discovery software cost?
E-discovery software costs vary widely from $50 to $500+ per GB of data processed. Cloud-based solutions like Relativity, Everlaw, and Logikcull charge per GB or per user. Enterprise licenses can cost $10,000 to $100,000+ annually.
What factors affect document review costs?
Document review costs depend on document volume, review platform used, reviewer expertise level, document complexity, language requirements, and timeline urgency. First-pass review costs range from $0.50 to $2.00 per document.
How many documents are typically reviewed in discovery?
Document volumes vary dramatically by case complexity. Simple cases may involve 1,000-10,000 documents, while complex commercial litigation can involve millions of documents. Class actions and antitrust cases often have the highest volumes.
What is the average cost of attorney review per hour?
Attorney review rates range from $150 to $600+ per hour depending on experience level. Junior associates typically bill $150-$300, senior associates $300-$500, and partners $500-$800+ per hour for discovery review.
How do paralegal costs factor into discovery?
Paralegals handle document organization, privilege logs, database management, and exhibit preparation. Paralegal rates range from $75 to $200 per hour. Their work is essential for efficient discovery management.
What is the cost of a deposition in discovery?
Deposition costs include court reporter fees ($250-$800 per day), videographer fees ($300-$1,000 per day), transcript costs ($3-$6 per page), attorney preparation time, and witness fees. A single deposition typically costs $2,000-$10,000.
What are interrogatory costs?
Interrogatory costs include attorney time to draft and respond to written questions, expert consultation for technical questions, and document gathering. Each set of interrogatories may cost $1,000-$5,000 in attorney time alone.
How can discovery costs be reduced?
Discovery costs can be reduced through early case assessment, targeted discovery requests, technology-assisted review (TAR), predictive coding, proportionality-focused strategies, and negotiated discovery protocols with opposing counsel.
What is proportionality in discovery?
Proportionality under FRCP 26(b)(1) requires that discovery be proportional to the needs of the case, considering the amount in controversy, parties' resources, issue importance, and burden versus benefit. Courts increasingly enforce proportionality.
What is technology-assisted review (TAR)?
TAR uses machine learning algorithms to identify relevant documents more efficiently than manual review. TAR can reduce review costs by 40-80% while maintaining or improving accuracy compared to linear manual review.
How does data volume affect discovery costs?
Data volume directly impacts storage, processing, review, and hosting costs. Each terabyte of data can cost $20,000-$100,000+ to process and review. Reducing data volume through early filtering and deduplication is critical for cost control.
What is a privilege log and why does it cost money?
A privilege log lists documents withheld from discovery due to attorney-client privilege or work product protection. Preparing privilege logs requires attorney review of each document, often costing $1-$5 per document logged.
How do discovery costs differ between federal and state court?
Federal courts follow the FRCP with specific proportionality and preservation requirements. State court rules vary widely. Federal discovery tends to be more standardized but can involve higher e-discovery costs due to stricter requirements.
What is the cost of data collection in discovery?
Data collection costs include forensic imaging, cloud data collection, mobile device extraction, and metadata preservation. Costs range from $500-$5,000 per device or custodian, depending on collection complexity.
How does cloud data affect discovery costs?
Cloud data from Office 365, Google Workspace, Slack, and other platforms adds complexity and cost. Collecting, processing, and reviewing cloud data often requires specialized tools and APIs, increasing overall discovery expenses by 20-40%.
What is early case assessment (ECA)?
ECA involves reviewing key data early to understand case strengths and weaknesses before full discovery. ECA tools and processes cost $5,000-$25,000 but can save $50,000-$500,000+ by enabling early settlement or targeted discovery.
What are the most expensive types of discovery?
The most expensive discovery types include forensic data collection, international discovery (compliance with foreign privacy laws), massive document reviews (1M+ documents), and expert discovery involving complex technical or scientific evidence.
How does discovery cost affect settlement decisions?
High discovery costs often motivate early settlement, particularly in cases where discovery expenses would approach or exceed the potential recovery. Parties regularly conduct cost-benefit analyses comparing discovery costs to case value.
What is a discovery budget and why is it important?
A discovery budget projects all anticipated discovery costs including collection, processing, review, depositions, and expert discovery. Budgets help parties control costs, support proportionality arguments, and inform settlement strategy.
How do discovery costs vary by case type?
Personal injury cases typically have lower discovery costs ($5,000-$50,000). Commercial litigation ($50,000-$500,000), antitrust ($500,000-$5M+), and securities class actions ($1M-$10M+) have substantially higher discovery costs due to data volumes.
What is the role of a discovery special master?
A special master appointed by the court oversees discovery disputes and protocols. Costs are split between parties and typically range from $300-$800 per hour. Special masters can reduce overall costs by streamlining discovery.
How does international discovery affect costs?
International discovery involves foreign data privacy laws (GDPR, LGPD), language translation, cross-border data transfers, and international counsel coordination. Costs can be 2-5 times higher than domestic discovery.
What is predictive coding in e-discovery?
Predictive coding uses supervised machine learning where attorneys code a seed set of documents, and the algorithm predicts relevance for the remaining documents. It reduces review costs by 50-80% compared to linear review.
How are discovery costs allocated between parties?
Generally, each party bears its own discovery costs. However, courts may shift costs for unduly burdensome requests, and parties can negotiate cost-sharing agreements for third-party discovery or common benefit discovery.
What is the cheapest way to conduct discovery?
The cheapest approach involves early case assessment, negotiated limited discovery protocols, using free or low-cost review tools, leveraging technology-assisted review, and maintaining organized data management practices from the outset.
How do document review platforms charge?
Platforms charge per GB hosted ($10-$50/month), per user subscription ($500-$5,000/user/year), or per document reviewed ($0.25-$1.00). Hybrid pricing models are common. Total platform costs for a mid-size case range from $10,000-$100,000.
What is the cost of failing to preserve evidence?
Spoliation sanctions can include monetary penalties, adverse inference instructions, or case-dispositive sanctions. Defense costs for spoliation motions range from $10,000-$100,000, and adverse inference instructions can effectively lose the case.
How do discovery costs differ for plaintiffs versus defendants?
Plaintiffs typically produce their own documents and respond to discovery requests. Defendants often bear higher costs as primary data holders. However, both sides face similar costs for depositions, expert discovery, and motion practice.
What is a discovery cost estimate used for?
Cost estimates inform budgeting, settlement negotiations, fee petitions, and proportionality arguments. Accurate estimates help attorneys advise clients on litigation strategy and whether alternative dispute resolution is more cost-effective.
How does the discovery process begin?
Discovery begins with initial disclosures (required under FRCP 26), followed by written discovery requests (interrogatories, requests for production, requests for admission), and then depositions and expert discovery. Each phase adds incremental costs.
What are the benefits of a discovery protocol agreement?
Agreed discovery protocols reduce disputes, streamline production formats, limit privilege log requirements, and establish cost-effective review procedures. Parties can save 20-40% of discovery costs through negotiated protocols.

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